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Monolithic Power Systems (MPS) MPQ7228-AEC1 LED Drivers

Monolithic Power Systems (MPS) MPQ7228-AEC1 LED Drivers are optimized for animated or dynamic lighting applications. These 16-channel current sink LED drivers have Adaptive Feedback Control (AFC) and a UART interface. The MPQ7228-AEC1 LED drivers employ a 12-bit Pulse-Width Modulation (PWM) dimming and 6-bit analog dimming register per channel, with individual control of each channel. Each channel is rated for up to 200mA of current, and 16 ICs can be cascaded together to create a 256-channel solution. The MPQ7228-AEC1 drivers are available in a QFN-32 (5mm x 6mm) package and are AEC-Q100 qualified. 

Features

  • Scalability:
    • 16-channels, 200mA/channel (maximum current)
    • Cascade up to 16 ICs for up to 256 channels
    • Pin-configurable device address
  • Designed for automotive applications:
    • Supports 2.5V cold crank
    • -40°C to 150°C operating Junction Temperature (TJ) range
  • Cooler thermals and optimized efficiency:
    • Adaptive Feedback Control (AFC) dynamically optimizes pre-regulator output
    • 300mV current sink headroom at 200mA
    • Headroom optimization for multiple ICs
  • Robust communication:
    • 2Mbps UART-compatible interface
    • 12-bit Pulse-Width Modulation (PWM) dimming or 6-bit analog dimming for each channel
  • Optimized for EMI/EMC reduction:
    • Configurable phase shift and slew rate
    • Frequency Spread Spectrum (FSS) (Internal Clock)
    • Selectable PWM dimming frequency
    • CISPR25 Class 5 Compliant
  • Additional features:
    • Functional safety document available to support system in achieving ASIL requirements
    • Failsafe (/FS) pin and fault registers for system protection and diagnostics:
      • LED short (to GND and battery)
      • LED open protection
      • Thermal warning and shutdown
      • ISET pin open/short
  • One-Time Programmable (OTP) memory
  • Available in a QFN-32 (5mm x 6mm) package with wettable flanks
  • Available in AEC-Q100 Grade 1

Typical Application

Application Circuit Diagram - Monolithic Power Systems (MPS) MPQ7228-AEC1 LED Drivers

Block Diagram

Block Diagram - Monolithic Power Systems (MPS) MPQ7228-AEC1 LED Drivers

Evaluation Board

Monolithic Power Systems (MPS) EVQ7228-QJ-00A Evaluation Board

Designed to demonstrate the capabilities of the MPQ7228, a 16-channel, current sink LED driver.

Learn Moreabout Monolithic Power Systems (MPS) EVQ7228-QJ-00A Evaluation Board View Productsrelated to Monolithic Power Systems (MPS) EVQ7228-QJ-00A Evaluation Board
Published: 2024-08-13 | Updated: 2025-04-03